#include<stdio.h>

#define SQUARE(x) x*x
#define PX(x) printf("x is %d\n", x)

int main() {
    printf("The 2 square is %d\n", SQUARE(2));
    printf("The 1.5 square is %f\n", SQUARE(1.5));
    int x = 10;
    PX(x);
    return 0;
}